Some people had go true a lot off things just to get vivox working.
So some have the honor to use it on Fed side Some have not .
Also when you activate vivox be aware it uses a lot of your memory .To use Vivox its recommended you have at least 2 GB available .
Otherwise the game will stutter a lot .
Also not advisable at the moment to use it on low end laptops who where not designed for games.